@media screen and (min-height: 480px){
  
  
  /***************************************************************
  TWO COLUMN LAYOUT 
  ****************************************************************/
  
  #primary {
    width: 50%;
    float: left;
  }
  
  #secondary {
    width: 40%;
    float: right;
  }

  
  
  /***************************************************************
  PAGE: PORTFOLIO
  ****************************************************************/
  
  #gallery li {
    width: 28.3333%;
  }
  
  #gallery li:nth-child(4n) {
    clear: left;
  }



  /***************************************************************
  PAGE: ABOUT
  ****************************************************************/

  .profile-photo {
    float: left;
    margin: 0 5% 80px 0;
  }
  
}

@media screen and (min-height: 660px){
  
    
  /***************************************************************
  HEADER
  ****************************************************************/

    nav {
      background: none;
      float: right;
      font-size: 1.125em;
      margin-right: 5%;
      text-align: right;
      width: 45%;
    }
  
    #logo {
      float: left;
      margin-left: 5%;
      text-align: left;
      width: 45%;
    }
  
    h1 {
      font-size: 2.5em;
    }
    
    h2 {
      font-size: 0.825em;
      margin-bottom: 20px;
    }
    
    header {
      border-bottom: 5px solid #599a68;
      margin-bottom: 60px;
    }
  
  }